#yy_homepage .head {
	height: 39px;
	border-bottom: 1px solid #efefef;
}
#yy_homepage .head .logo, #yy_homepage .head .logo img {
	height: 40px;
	width: 254px;
}
#yy_homepage .head .slice-wrap {
	margin-left: 265px;
}
#yy_homepage .head .slice {
	font-size: 16px;
	text-align: center;
}
#yy_homepage .head .slice li {
	position: relative;
	float: right;
	line-height: 40px;
	width: 25%;
}
#yy_homepage .head .current:after {
	content: "";
	position: absolute;
	bottom: 0px;
	left: 50%;
	transform: translate3d(-50%, 0, 0);
	width: 100px;
	border-top: 1px solid #000;
}
.banner {
	position: relative;
}
.banner-img {
	width: 100%;
	height: 340px;
}
.use-btn {
	position: absolute;
	bottom: 40px;
	left: 100px;
	border: 1px solid #000;
}
.case-wrap {
	width: 690px;
	margin-right: 310px;
}
.case img {
	float: left;
	height: 220px;
	width: 220px;
}
.guid {
	float: right;
	width: 300px;
	height: 200px;
	border: 1px solid;
}
.login-wrap {
	height: 200px;
	width: 300px;
	margin: auto;
}
.register-wrap {
	height: 200px;
	width: 300px;
	margin: auto;
}
.style-wrap {
	height: 210px;
	width: 300px;
	margin: auto;
}
.styl-content ul li {
	position: relative;
	float: left;
	height: 100px;
	width: 100px;
	border: 1px solid #000;
}
.styl-content .current:after {
	content: '√';
	position: absolute;
	height: 20px;
	width: 20px;
	text-align: center;
	line-height: 20px;
}